SimonQian <simonqian@SimonQian.com>:

Changes svf_check_tdo function (checks tdo output matches desired values):
- call buf_cmp_mask function to do comparison instead of using a loop.
- fixes a bug when data length is equal to sizeof(int).


git-svn-id: svn://svn.berlios.de/openocd/trunk@1900 b42882b7-edfa-0310-969c-e2dbd0fdcd60